Malicious PDF — malware analysis report

Static analysis result for SHA-256 54192d56a3d25d4b…

MALICIOUS

PDF

62.6 KB Created: 2020-07-25 14:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 867693b770d42644493ce79f8a1fd0d3 SHA-1: a21aee49e966f4983d2e06a9315eed6195a1217c SHA-256: 54192d56a3d25d4b0f4003e71d5236013f43ba9a42e382a3f170955210c90a37
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'event html template free', suggesting a lure. The primary IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=event+html+template+free
    • http://files.greaterlifeheritage.com/uploads/1/3/0/7/130776083/pugujakil-pirusafona-robejadi.pdf
    • http://files.angelaadockter.com/uploads/1/3/2/6/132681492/9128e4b92f50.pdf
    • http://files.studentfinanceboard.com/uploads/1/3/0/8/130874612/xovexod_jedebanel_sularuxipi_sowiboju.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/wajarugazozolob.pdf
    • https://cdn.shopify.com/s/files/1/0430/1222/7225/files/45210574567.pdf
    • https://cdn.shopify.com/s/files/1/0429/5373/6351/files/dutotomumejajuxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/45512650930.pdf
    • https://cdn.shopify.com/s/files/1/0431/3730/2679/files/rofinukajo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/96606376642.pdf
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/jenomopa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5637/3659/files/jirinuzomuwujebow.pdf
    • https://cdn.shopify.com/s/files/1/0435/3359/8880/files/57407023419.pdf
    • https://cdn.shopify.com/s/files/1/0430/7261/8657/files/12530236442.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/9445081716.pdf
    • https://cdn.shopify.com/s/files/1/0435/2117/9802/files/tusawogidozumozog.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/sexudemonororunojokokov.pdf
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/10514763169.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba48.bin
adf6e85a90f7729ba1c23a62b53bbec9990b09c080b06e073d9086bee5b43de4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA48 4612 bytes
font_01_sfnt_off0000c9b9.bin
7d810049dcd6550e731727bc20bdc8772baf8b3a7a7d1fc7353c7255f2482138		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9B9 10328 bytes

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